You may think there is only sand in the desert of the world, __1__ it is not true. In the desert, as we know, there is a little __2__, but it is not __3__ for most plants. Still we can see some plants __4__ in the desert.
　　There is __5__ in some places in the desert. We __6__ these places oases. In the oases, there are villages and towns. People grow __7__ kinds of crops in the fields there.
　　People __8__ live outside the oases. They have camels, sheep and other animals. These animals depend __9__ the desert plants for their food and do not need __10__ water.
　　The __11__ are useful to the desert people in many ways. They eat the meat and drink the milk of the animals. They use the camels for carrying water, food, tents and something else.
　　The people of the desert have to keep moving from place to place. They must always look 12 grass or desert plants for their animals. When there is no more food for their animals, they move to __13__ place. The desert people are __14__. No man in the desert would ever refuse __15__ the people in trouble and give them food and water.
　　1. A. and B. but C. or D. so
　　2. A. rain B. rains C. wind D. winds
　　3. A. good B. good enough C. enough good D. enough
　　4. A. live B. to live C. lives D. lived
　　5. A. stones B. plants C. wood D. water
　　6. A. say B. tell C. call D. find
　　7. A. every B. all C. a D. one
　　8. A. also B. too C. either D. still
　　9. A. with B. in C. on D. by
　　10. A. a little B. few C. much D. any
　　11. A. water B. plants C. crops D. animals
　　12. A. at B. for C. up D. after
　　13. A. other B. the other C. the others D. another
　　14. A. well B. friend C. friendly D. carefully
　　15. A. help B. helps C. helping D. to help
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